Finding the Fourth Proportional to 426,389.13, 639,917.99 and 297,467.03
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Solution
The fourth proportional to 426,389.13, 639,917.99 and 297,467.03 is: 446,433.77
Step by Step Solution
- Step 1: Write the proportion equation
426,389.13 : 639,917.99 = 297,467.03 : x - Step 2: Convert to fraction form
426,389.13/639,917.99 = 297,467.03/x - Step 3: Cross multiply
426,389.13x = 639,917.99 × 297,467.03 - Step 4: Simplify right side
426,389.13x = 190,354,505,156.83 - Step 5: Solve for x
x = 190,354,505,156.83/426,389.13 - Step 6: Final answer
x = 446,433.77
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.